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Finding the Fourth Proportional to 469,910.01, 648,474.18 and 255,050.07

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Solution

The fourth proportional to 469,910.01, 648,474.18 and 255,050.07 is: 351,968.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,910.01 : 648,474.18 = 255,050.07 : x
  2. Step 2: Convert to fraction form
    469,910.01/648,474.18 = 255,050.07/x
  3. Step 3: Cross multiply
    469,910.01x = 648,474.18 × 255,050.07
  4. Step 4: Simplify right side
    469,910.01x = 165,393,385,261.64
  5. Step 5: Solve for x
    x = 165,393,385,261.64/469,910.01
  6. Step 6: Final answer
    x = 351,968.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.